diff options
Diffstat (limited to 'tests/ui/traits/new-solver/escaping-bound-vars-in-writeback-normalization.rs')
-rw-r--r-- | tests/ui/traits/new-solver/escaping-bound-vars-in-writeback-normalization.rs | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/tests/ui/traits/new-solver/escaping-bound-vars-in-writeback-normalization.rs b/tests/ui/traits/new-solver/escaping-bound-vars-in-writeback-normalization.rs new file mode 100644 index 000000000..29784c32a --- /dev/null +++ b/tests/ui/traits/new-solver/escaping-bound-vars-in-writeback-normalization.rs @@ -0,0 +1,18 @@ +// compile-flags: -Ztrait-solver=next +// check-pass + +trait Trivial { + type Assoc; +} + +impl<T: ?Sized> Trivial for T { + type Assoc = (); +} + +fn main() { + // During writeback, we call `normalize_erasing_regions`, which will walk past + // the `for<'a>` binder and try to normalize `<&'a () as Trivial>::Assoc` directly. + // We need to handle this case in the new deep normalizer similarly to how it + // is handled in the old solver. + let x: Option<for<'a> fn(<&'a () as Trivial>::Assoc)> = None; +} |